Acquisitions	9 Months Ended
Acquisitions	Sep. 28, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions On August 7, 2019, Snap-on acquired Cognitran Limited ("Cognitran") for a preliminary cash purchase price of $30.7 million (or $29.7 million, net of cash acquired). The preliminary purchase price is subject to change based upon finalization of a working capital adjustment that is expected to be completed in the fourth quarter of 2019. Cognitran, based in Chelmsford, United Kingdom, specializes in flexible, modular and highly scalable "Software as a Service" (SaaS) products for OEM customers and their dealers, focused on the creation and delivery of service, diagnostics, parts and repair information to OEM dealers and connected vehicle platforms. As of September 28, 2019, the company recorded, on a preliminary basis, the $27.7 million excess of the purchase price over the fair value of the net assets acquired in "Goodwill" on the accompanying Condensed Consolidated Balance Sheets. The company anticipates completing the purchase accounting for the acquired net assets of Cognitran, including the potential identification and quantification of other intangible assets, in the first half of 2020. On April 2, 2019, Snap-on acquired Power Hawk Technologies, Inc. (“Power Hawk”) for a cash purchase price of $7.9 million. Power Hawk, based in Rockaway, New Jersey, designs, manufactures and distributes rescue tools and related equipment for a variety of military, governmental and fire, rescue and emergency operations. As of the third quarter of 2019, the company has completed the purchase accounting valuations for the acquired net assets of Power Hawk, including intangible assets. The $6.4 million excess of the purchase price over the fair value of the net assets acquired was recorded in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. On January 25, 2019, Snap-on acquired substantially all of the assets of TMB GeoMarketing Limited (“TMB”) for a cash purchase price of $1.3 million. TMB, based in Dorking, United Kingdom, designs planning software used by OEMs to optimize dealer locations and manage the performance of dealer outlets. The company completed the purchase accounting valuations for the acquired net assets of TMB during the first quarter of 2019. Substantially all of the purchase price was recorded in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. On January 31, 2018, Snap-on acquired substantially all of the assets of George A. Sturdevant, Inc. (d/b/a Fastorq) for a cash purchase price of $3.0 million. Fastorq, based in New Caney, Texas, designs, assembles and distributes hydraulic torque and hydraulic tensioning products for use in critical industries. As of the second quarter of 2018, the company completed the purchase accounting valuations for the acquired net assets of Fastorq. The $2.6 million excess of the purchase price over the fair value of the net assets acquired was recorded in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. For segment reporting purposes, the results of operations and assets of Cognitran and TMB have been included in the Repair Systems and Information Group since each respective acquisition date, and the results of operations and assets of Power Hawk and Fastorq have been included in the Commercial & Industrial Group since each respective acquisition date. Pro forma financial information has not been presented for these acquisitions as the net effects were neither significant nor material to Snap-on’s results of operations or financial position. See Note 6 for further information on goodwill and other intangible assets.